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@troelskn
troelskn / gist:1287893
Created October 14, 2011 18:24
Luhn's algorithm in php
<?php
function is_valid_luhn($number) {
settype($number, 'string');
$sumTable = array(
array(0,1,2,3,4,5,6,7,8,9),
array(0,2,4,6,8,1,3,5,7,9));
$sum = 0;
$flip = 0;
for ($i = strlen($number) - 1; $i >= 0; $i--) {
$sum += $sumTable[$flip++ & 0x1][$number[$i]];
@matthanger
matthanger / blti-launch.php
Last active May 5, 2025 20:36
Sample code for Basic LTI Consumer in PHP
<?php
# ------------------------------
# START CONFIGURATION SECTION
#
$launch_url = "https://lti.tools/test/tp.php";
$key = "12345";
$secret = "secret";
$launch_data = array(
@umpirsky
umpirsky / AdminController.php
Created August 16, 2011 08:59
Simple Zend Framework admin controller secured by basic HTTP authentication
<?php
/**
* Admin area.
*/
class AdminController extends Zend_Controller_Action {
public function preDispatch() {
if (
@esperlu
esperlu / mysql2sqlite.sh
Created April 27, 2011 05:46
MySQL to Sqlite converter
#!/bin/sh
# Converts a mysqldump file into a Sqlite 3 compatible file. It also extracts the MySQL `KEY xxxxx` from the
# CREATE block and create them in separate commands _after_ all the INSERTs.
# Awk is choosen because it's fast and portable. You can use gawk, original awk or even the lightning fast mawk.
# The mysqldump file is traversed only once.
# Usage: $ ./mysql2sqlite mysqldump-opts db-name | sqlite3 database.sqlite
# Example: $ ./mysql2sqlite --no-data -u root -pMySecretPassWord myDbase | sqlite3 database.sqlite
/*!
* JavaScript function to calculate the destination point given start point latitude / longitude (numeric degrees), bearing (numeric degrees) and distance (in m).
*
* Original scripts by Chris Veness
* Taken from http://movable-type.co.uk/scripts/latlong-vincenty-direct.html and optimized / cleaned up by Mathias Bynens <http://mathiasbynens.be/>
* Based on the Vincenty direct formula by T. Vincenty, “Direct and Inverse Solutions of Geodesics on the Ellipsoid with application of nested equations”, Survey Review, vol XXII no 176, 1975 <http://www.ngs.noaa.gov/PUBS_LIB/inverse.pdf>
*/
function toRad(n) {
return n * Math.PI / 180;
};